All New Mass Airflow sensors are validated for extended run, extreme hot and cold, over-voltage, over-current, and shock and vibration. Most Blue Streak Electronics New Mass Airflow sensors feature ceramic circuit boards providing the following benefits: Resistors which are digitally calibrated for optimal precision Superior thermal stability under even the most extreme under-the-hood temperature changes Higher consistency in voltage readings at all rpms More efficient heat dissipation to extend the service life of the component Double binding for improved sensor reliability